CN202300579U - Sound eliminator - Google Patents
Sound eliminator Download PDFInfo
- Publication number
- CN202300579U CN202300579U CN2011204353733U CN201120435373U CN202300579U CN 202300579 U CN202300579 U CN 202300579U CN 2011204353733 U CN2011204353733 U CN 2011204353733U CN 201120435373 U CN201120435373 U CN 201120435373U CN 202300579 U CN202300579 U CN 202300579U
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- China
- Prior art keywords
- expansion chamber
- millimeters
- pipe
- silencing apparatus
- diameter
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- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to a novel exhaust sound eliminator. According to the exhaust sound eliminator, a totally-enclosed cylindrical expansion chamber is made of a steel plate; an interlayer is arranged at the position 600 millimeters away from an air inlet, and the expansion chamber is divided into a first expansion chamber and a second expansion chamber by the interlayer; the air inlet is connected with an exhaust pipe of an engine and is positioned in the center of a bottom plate of the sound eliminator; an extension pipe is connected with the air inlet and extends into the first expansion chamber; four short pipes which are distributed along the circumference are arranged on an intermediate clapboard and are integrated with the clapboard 5; and the air inlet is connected with the exhaust pipe of the engine of a large-scale diesel engine. According to the sound eliminator, waste gas exhausted by the engine enters the first expansion chamber from the extension pipe, and after being expanded for the first time, the waste gas enters the second expansion chamber from the four short pipes to be expanded further, and is exhausted from the exhaust pipe. The sound eliminator has a simple structure, has high performance in aspects of fluid dynamics and acoustics and has an excellent sound elimination effect, and glass fibers or similar materials are avoided.
Description
Technical field
The utility model relates to a kind of air exhaust muffler device, relates in particular to a kind of silencer that reduces the high-power diesel engine exhaust sound.
Background technique
Powerful diesel engine is in when work, because of exhaust produces very big noise, influence operator and personnel's work on every side and healthy, causes very big pollution from environmental noise.
Common exhaust silencer all has a quite complicated geometrical shape, makes difficulty, and cost is high, and as muffler material, the time has been grown fiber easy blocking, aging to some silencing apparatus with glass fibre simultaneously, and ineffective, the noise elimination effect descends thereupon.
The utility model is a cylindrical shape air exhaust muffler device, and this device is processed by sheetmetal, has avoided above-mentioned shortcoming, and has good noise elimination effect.
The model utility content
The purpose of the utility model provides a kind of simple in structure, effective air exhaust muffler device.
The purpose of the utility model realizes through following technological scheme:
The air exhaust muffler device of the utility model is the expansion chamber of the cylindrical tubular body of a full closed, 250 millimeters of external diameters, and 850 millimeters of length overalls are all processed with 1 to 2 millimeter steel plate.An interlayer being arranged, expansion chamber is divided into first, second expansion chamber apart from 600 millimeters places of suction port.Wherein 1 is suction port, and this mouthful links to each other with engine exhaust pipe, is positioned at the central authorities of silencing apparatus base plate; 2 is to stretch into pipe, is connected with suction port, extend in first expansion chamber 3; The 5th, intermediate clapboard has four short tubes 4 along circle distribution on it, process one with dividing plate 5, and it is on 160 millimeters the circumference that short tube 4 is distributed in diameter; 6 is second expansion chambers.
The engine exhaust pipe of suction port 1 and large-scale diesel engine is connected, and somewhat larger in diameter is in the diameter of suction tude 2.
Stretch into pipe 2 and probe into 300 millimeters of first expansion chambers, diameter is 70 millimeters.
This model utility is simple in structure; Need not use glass fibre or similar material; Compare with other silencing apparatus, this device possesses good performance aspect two of hydrokinetics (engine power loss) and acoustics (SE Sound Effect), and has good noise elimination effect.
Description of drawings
Fig. 1 is the utility model air exhaust muffler device figure.
Among the figure: 1, suction port, 2, stretch into pipe, 3, first expansion chamber, 4, short tube, 5, dividing plate, 6, second expansion chamber, 7, outlet pipe.
Fig. 2 is dividing plate figure.
Embodiment
The exhaust silencer device of the utility model, its preferable embodiment is as shown in Figure 1.
The engine exhaust pipe of large-scale diesel engine and the suction port 1 of this model utility are connected; The waste gas that motor is discharged gets into first expansion chamber 3 through stretching into pipe 2; Gas expands for the first time; Waste gas gets into second expansion chamber 6 through four short tubes 4 then, and gas further expands, and gets rid of from outlet pipe 7 at last.
Above process can find out that this device has adopted the gas double expansion to effectively reduce noise, and on dividing plate 5, adopts the aperture noise-cancelling theory, and four the segment pipes that distributed pass through waste gas.
The principle that aperture is eliminated the noise is that frequency spectrum with jet noise is a foundation; Replace with a lot of little spouts if the gross area of maintenance spout is constant; When the frequency spectrum of air-flow during through small holes, jet noise will be shifted to high frequency or ultra-high frequency; Audible sound composition in the frequency spectrum is obviously reduced, thereby reduce interference and injury the people.
The said mechanism of above-mentioned Fig. 1, size error must not be greater than 1 millimeter during manufacturing, as long as guarantee accuracy of manufacturing, this silencing apparatus will make the engine exhaust acoustic attenuation performance of large-sized diesel locomotive (110kW to 120kW) reach the optimum state.
The utlity model has simple in structure, good muffling effect, bulk strength is high, operational failure is few, the life-span is long, help the characteristics of engine power utilization.
Claims (5)
1. a silencing apparatus is characterized in that: the expansion chamber of the cylindrical tubular body of a full closed, 250 millimeters of external diameters; 850 millimeters of length overalls; All process,, expansion chamber is divided into first, second expansion chamber an interlayer being arranged apart from 600 millimeters places of suction port with 1 to 2 millimeter steel plate.
2. a kind of silencing apparatus according to claim 1, wherein (1) is suction port, this mouthful links to each other with engine exhaust pipe, is positioned at the central authorities of silencing apparatus base plate; (2) be to stretch into pipe, be connected with suction port and stretch in first expansion chamber (3); (5) be intermediate clapboard, four short tubes along circle distribution (4) are arranged on it, process one, be distributed in diameter and be on 160 millimeters the circumference with dividing plate (5); (6) be second expansion chamber.
3. a kind of silencing apparatus according to claim 1 and 2 is characterized in that, suction port (1) somewhat larger in diameter is in the diameter that stretches into pipe (2), and deeply pipe (2) probes into 300 millimeters of first expansion chambers, and diameter is 70 millimeters.
4. a kind of silencing apparatus according to claim 1 and 2, short tube (4) is 160 millimeters a circle distribution along diameter, long 70 millimeters, 35 millimeters of external diameters.
5. a kind of silencing apparatus according to claim 1 and 2, outlet pipe (7) probe in second expansion chamber 100 millimeters, and 60 millimeters of external diameters stretch out outer 200 millimeters of the expansion chamber of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204353733U CN202300579U (en) | 2011-11-07 | 2011-11-07 | Sound eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204353733U CN202300579U (en) | 2011-11-07 | 2011-11-07 | Sound eliminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202300579U true CN202300579U (en) | 2012-07-04 |
Family
ID=46369501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204353733U Expired - Fee Related CN202300579U (en) | 2011-11-07 | 2011-11-07 | Sound eliminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202300579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485865A (en) * | 2013-08-26 | 2014-01-01 | 中国石油化工集团公司 | Exhaust pipe of diesel engine for well drilling |
-
2011
- 2011-11-07 CN CN2011204353733U patent/CN202300579U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485865A (en) * | 2013-08-26 | 2014-01-01 | 中国石油化工集团公司 | Exhaust pipe of diesel engine for well drilling |
| CN103485865B (en) * | 2013-08-26 | 2018-02-23 | 中国石油化工集团公司 | A kind of well-drilling diesel engine exhaust tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20121107 |